The Open de Sion is a professional tennis tournament played on clay courts. It is currently part of the ATP Challenger Tour. It was first held in Sion, Switzerland in 2026.

Past finals Singles YearChampionRunner-upScore 2026 Dominic Stricker Benjamin Hassan 6–1, 2–6, 6–2

Doubles YearChampionsRunners-upScore 2026 Maximilian Neuchrist David Poljak Murkel Dellien Facundo Mena 6–4, 6–4

References

External links Sion Overview ATP Tour Tennis